T.G.I.F.! OK, it's only Monday, but Katy Perry's new '80s-inspired music video for "Last Friday Night (T.G.I.F.)" will make you either long for the upcoming weekend, or a John Hughes teen movie marathon!
Although I would typically get a little antsy while sitting through an eight-minute video clip of anything on the Web, Katy's vid is definitely worth watching as the pop singer gets to show off her goofy side while portraying her geeky 13-year-old alter ego, Kathy Beth Terry, who wakes up the day after throwing a crazy house party ... she can't remember. Not only do viewers get to see the typically sexy "I Kissed a Girl" singer sporting dorky glasses, braces, and yes, even headgear, but they are also treated to a slew of celebrity cameos, including "Glee" stars Darren Criss and Kevin McHale, "Friday" singer Rebecca Black -- who plays Kathy's cool BFF -- and even saxophonist Kenny G, who rocks out with Hanson -- one of Kathy's favorite bands accordingRead More »from Meet Katy Perry’s Nerdy Alter Ego